Mitsubishi L200. Manual - part 785

ETACS

CHASSIS ELECTRICAL

54A-507

Q: Is the diagnosis code set?

YES : 

Replace the ETACS-ECU and register the 

ID codes (Refer to 

P.54A-39

). After 

replacing the ECU, carry out the CAN bus 
diagnostics. Then go to Step 5.

NO : 

A poor connection, open circuit or other 
intermittent malfunction is present in the 
CAN bus lines between the RV meter and 
the ETACS-ECU (Refer to GROUP 00, How 
to Use Troubleshooting/Inspection Service 
Points 

− How to Cope with Intermittent 

Malfunctions ).

STEP 5. Check whether the diagnosis code is 
reset.
Recheck if the diagnosis code is set to the ETACS-
ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF) 

position to "ON" position.

(3) On completion, check that the diagnosis code is 

reset.

Q: Is the diagnosis code set?

YES : 

Return to Step 1.

NO : 

The procedure is complete.

Code No.U1150: Vehicle speed failure information

COMMENTS ON TROUBLE SYMPTOM
The ETACS-ECU receives the vehicle speed signal 
from the engine-ECU via the CAN bus line. When the 
received vehicle speed signal contains the failure 
information, the diagnosis code No. U1150 is stored.

PROBABLE CAUSES

• Malfunction of the vehicle speed sensor

• Malfunction of the engine-ECU

• Malfunction of the ETACS-ECU

• Malfunction of the CAN bus

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the CAN bus line (Refer to GROUP 
54C 

− Troubleshooting ). On completion, go 

to Step 3.

STEP 2. Check the diagnosis code of the engine-
ECU.
Check that the engine-ECU set a diagnosis code.

Q: Is the diagnosis code set?

YES : 

Diagnose the engine-ECU. Refer to 

GROUP 13A 

− Troubleshooting . On 

completion, go to Step 3.

NO : 

Go to Step 3.

STEP 3. Check whether the diagnosis code is 
reset.
Check again if the diagnosis code is set to the 
ETACS-ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF) 

position to "ON" position.

(3) On completion, check that the diagnosis code is 

reset.

Q: Is the diagnosis code set?

YES : 

Replace the ETACS-ECU and register the 

ID codes (Refer to 

P.54A-39

). After 

replacing the ECU, carry out the CAN bus 
diagnostics.

NO : 

The procedure is complete.

DATA LIST REFERENCE TABLE

M1545001300550

Use the M.U.T.-III to check "Service Data."

NOTE: If a problem is found in the "Service Data" 
check, refer to the Check Trouble by Using the 
Input Signal Check (Refer to 

P.54A-522

).

1. The following input signals can be checked by 

using the M.U.T.-III.

INPUT SIGNALS WHICH CAN BE CHECKED BY 
SERVICE DATA

Item No. Item name

Check condition

Normal condition

19

Driver's door switch

Driver's door: Open

ON

Driver's door: Closed

OFF

ETACS

CHASSIS ELECTRICAL

54A-508

20

Driver's door unlock switch

When driver's door is unlocked

ON

Other than above

OFF

21

Driver's door lock switch

When driver's door is locked

ON

Other than above

OFF

22

Electric folding door mirror SW

Not used

OFF

25

Front wiper auto stop switch

When windshield wipers are in 
operation

ON

Other than above

OFF

26

Hazard warning lamp switch

While hazard switch is pressed

ON

Other than above

OFF

27

Rear wiper auto stop switch

Not used

OFF

28

Steering lock switch

When the ignition key is removed from 
the ignition key cylinder

ON

When the ignition key is inserted into 
the ignition key cylinder

OFF

29

Ignition switch(ACC)

When the ignition switch is turned to 
the "ACC" or "ON" position.

ON

Other than above

OFF

30

Ignition switch(IG1)

When the ignition switch is turned to 
the "ON" or "START" position.

ON

Other than above

OFF

44

Ignition switch(IG2)

When the ignition switch is turned to 
the "ON" position.

ON

Other than above

OFF

45

Shift position "R" input

Not used

OFF

48

Passenger's door switch

Front passenger's door: Open

ON

Front passenger's door: Closed

OFF

49

Rear door switch

Rear door or tailgate: Open

ON

Rear door or tailgate: Closed

OFF

50

Driver's seatbelt(Buckle SW)

Driver's seat belt: unfastened

ON

Driver's seat belt: fastened

OFF

51

Passenger seatbelt(Buckle SW)

Passenger's seat belt: unfastened

ON

Passenger's seat belt: fastened

OFF

52

Gate opener switch

When the tailgate lock release handle 
is turned to the "ON" position.

ON

Other than above

OFF

55

Battery voltage

Always

System voltage

56

Remain of head lamp timer

When headlamp automatic-shutdown 
function is operating

Displays the time

58

Vehicle speed signal

Perform a run of the vehicle.

Displays the vehicle 
speed

Item No. Item name

Check condition

Normal condition

ETACS

CHASSIS ELECTRICAL

54A-509

59

Tail lamp output

When the tail lamp illuminates.

ON

Other than above

OFF

60

Headlamp output

When the headlamp (low-beam) 
illuminates.

ON

Other than above

OFF

61

Headlamp HI output

When the headlamp (high-beam) 
illuminates.

ON

Other than above

OFF

62

Turn-signal lamp (LH) output

When the turn-signal lamp (LH) 
illuminates.

ON

Other than above

OFF

63

Turn-signal lamp (RH) output

When the turn-signal lamp (RH) 
illuminates.

ON

Other than above

OFF

64

Headlamp washer output

When the headlamp washer operates. ON
Other than above

OFF

65

Front wiper output

When the front wiper operates.

ON

Other than above

OFF

66

Front wiper HI output

When the windshield wiper (high-
speed) operates.

ON

Other than above

OFF

67

Front washer output

When the windshield washer 
operates.

ON

Other than above

OFF

68

Door "LOCK" output

When the door is in the "lock" state.

ON

Other than above

OFF

69

Door "UNLOCK" output

When the door is in the "unlock" state. ON
Other than above

OFF

70

Front fog lamp

When the front fog lamp illuminates.

ON

Other than above

OFF

71

Rear fog lamp

When the rear fog lamp illuminates.

ON

Other than above

OFF

72

Room lamp output

When the room lamp illuminates.

ON

Other than above

OFF

73

Horn

Not used

OFF

74

Buzzer

When the buzzer sounds.

ON

Other than above

OFF

75

IG key cylinder ILL. output

When the ignition key cylinder 
illumination lamp illuminates.

ON

Other than above

OFF

Item No. Item name

Check condition

Normal condition

ETACS

CHASSIS ELECTRICAL

54A-510

CHECK CHART FOR TROUBLE 
SYMPTOMS

M1545001200069

76

Illuminations power supply

When the illumination lamp of clock or 
manual air conditioner illuminates.

ON

Other than above

OFF

77

Power window relay output

When the ignition switch is turned to 
the "ON" position.

ON

Other than above

OFF

78

Door indicator output

When the door indicator illuminates.

ON

Other than above

OFF

79

Seatbelt indicator output

When the door indicator illuminates.

ON

Other than above

OFF

80

All of the door switch output

Not used

OFF

81

Shift position "P" output

Not used

OFF

83

Rear washer output

Not used

OFF

84

Rear wiper output

Not used

OFF

86

Intermittent wiper interval

When the intermittent wiper operates. Displays the time

87

Gate opener output

When the tailgate open actuator 
operates.

ON

Other than above

OFF

88

ELC.folding mirror(OPEN)output

Not used

OFF

89

ELC.folding mirror(CLOSE)output Not used

OFF

90

Security alarm sensor input

Not used

OFF

91

Hood switch

Not used

OFF

101

Driver's key unlock switch

Not used

OFF

102

Security alarm history

Not used

OFF

103

Rear defogger switch

Not used

OFF

104

Auto lamp sensor voltage

When the ignition switch is turned to 
the "ON" position.

Displays the voltage 
of the auto-light 
sensor.

105

Security indicator output

When the security indicator 
illuminates.

ON

Other than above

OFF

106

Rear defogger output

Not used

OFF

107

DRL output

Not used

OFF

Item No. Item name

Check condition

Normal condition

Symptom

Inspection 
procedure 
number

Reference 
page

When the ignition switch is at the "LOCK" (OFF) position, the functions 
do not work normally.

A-1

P.54A-512

Check the battery power supply circuit to the ETACS-ECU.